Sentence examples for volume of radiation from inspiring English sources

In some instances, the effectiveness of radiotherapy is reduced as there can be difficulties positioning obese patients and adjusting the volume of radiation needed for treatment 114– 114.

With radiotherapy techniques dramatically changing the dose and volume of radiation for so many sites of radiotherapy, the applicability of the outcomes from the large epidemiologic studies of earlier decades utilizing outdated techniques to the modern context is unclear.

The subsequent system failure, meltdown and uncontrolled release of large volumes of radiation at the Tokyo Electric Power Corporation's Fukushima Daiichi nuclear complex has become one of the defining events of our age.

The excess of toxicity (mostly cardiac and pulmonary) and non-cancer-related deaths observed after PORT in the meta-analysis trials can probably be explained by old radiation 2D techniques, excessive volumes of radiation, too large doses and fraction sizes and no CT-scan-based planning.

However, essential questions related to the optimisation of thoracic radiotherapy remain unanswered including (i) optimal total dose, (ii) fractionation, (iii) timing and sequencing of radiation, (iv) volume of irradiation, and (v) concurrent chemotherapy combinations.

In our database it was difficult to disentangle separate effects of case-volume, presence of radiation therapy facilities, academic affiliation.

The study cohort is highly heterogeneous and these circumstances contribute to variability of the absorbed dose of ionising radiation to the normal tissue surrounding the target, which will enable us to study the dose-volume effects of radiation therapy to normal-tissues in relation to self-reported symptoms.

Extrinsic factors include the dose, volume and fraction of radiation, radio-sensitisers, concurrent chemotherapy, and the site of treatment.

Notwithstanding radical radiation therapy (RT) should deliver a total dose down to 66 Gy, covering tumor site and regional lymph nodes, and palliative therapy could use doses under to 45 Gy, the final choice of dose, fractioning, irradiated volume, and energies of radiation was at the radiation oncologist's discretion.

When measured as a percentage of the initial volume at the end of radiation therapy, the average volume reduction was 29.47% and 24.47% for the left and right parotid glands, respectively.

Some studies have left the decision of how to delineate tumor volume in the hands of radiation oncologists and nuclear medicine physicians, using FDG-PET adjunctively to improve the accuracy of tumor volume determined from CT, especially to separate normal tissues from tumor [8].